Granted Patent
Utility
US 5,847,914 · App. 08/577,919
Electrostatic discharge protection device
Inventors:
Arnold W. Johansen, David Cronin
Patented Case
View Patent ↗
Granted: Dec 8, 1998
Filed: Dec 21, 1995
Inventors
Arnold W. Johansen
David Cronin
Assignee (at issue)
Polaroid Corporation
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.